Automatically threading loom shuttle



May 28, 1929. w. A. TEBO AUTOMATICALLY THREADING LOOM SHUTTLE Filed Aug. 11, 1928 /Nl E/\/7'OR fin; M

ATTORNEY Patented May 23, 1929.

UNITED STATES PAT -o WILLIAM A. TEIBO, OF ANTHONY, RHODE ISLAND, AS SIGNOK T DRAPE'R CORPORA- TION, 0F HOPE-DALE, MASSACHUSETTS, CORPORATION OF MAINE. H

AUTOMATICALLY THREADING' LOOM SHUTTLE.

Application filed August 11, 1928. Serial No 299,021.

This .invention relates to automatically threading loom shuttles of-that general class which cooperate with .a -filling detector o1' feeler at the replenishing side of the loom.

It has been found in practice thatwhen the shuttle has been boxed at the filling replenishing side of the loom and the feeler is to enter the feeler opening to ascertain the condition of the filling on a detecting beat, the thread or filling extending from the cloth selvage to the side delivery eye of the shuttle, which is then adjacent the outer end of the shuttle box,

will frequently take position in front of the feeler opening and be broken by the feeler.

In attempts to overcome thisobjection, it'has been proposed to equi the loom with mecha-' llingbeyond the zone of action of the feeler on detecting beats,but

nism to I depress the such depressing mechanism complicates the a 9 loom construction and adds operatmg devices at a part of the loom where they may inter- W the invention, the feelermechanism herein ilfere with the work of the loom attendant.

One of the objects of the present invention is to provide an automatically threadingloom shuttle with simple and effective means whereby-the thread or filling extending be tween the cloth selvage and shuttleat the replenishin'g side of the loom may be positioned so that the feeler at this side of the loom may enter the feeler slot and detect the condition of the filling without liability'of breaking thedengthoffilling extending to' the cloth selvage. I

In accordance with the present invention, the shuttle is iovided with a feeler slot in the front .wal thereof through which the feeler at the replenishing side of the loom passes on a detecting beat to feel for the filling, and at one side of the feeler slot the front Wall of the shuttle is provided with a thread groove preferably below the feeler slot, and

y in order that the thread as it is delivered from the side delivery eye may be unerringly directed into the longitudinally extending thread groove at the side of the feeler slot, the invention provides a thread guide at the thread downwardly into the longitudinal thread oove, with the result that on a detecting eat the feeler may enter the feeler slot without obstruction from the length of the thread extending between the cloth selvage and the shuttle eye.

The invention and novel features thereof will best be made clear from the following description and the: accompanying drawiiigs of one good form thereof.

LIn the drawingszm v 1' .Fi 1 is a perspective View of portionsof a filling replenishing-loom having'the feeler 6' mechanism at the replenishing side and show- 3 ing-t-helshuttle of the present inve'ntion'asso 1 ciated therewith, some of the parts being broken'away; I Fig. is a side perspective viewof a shuttle contammgthepresent invention;

, l'lig. 3is an. enlarged side elevation the delivery or eye flportion of the'shuttle showing lling directed intothe longlthe thread or tudinally extending thread gr'oovejand Fig." 4-"is '-a cross-section of the; shuttle through the feeler slot. l 1. l The feeler mechanism and feeler which are I located vat thefreplenishin side ofthe loom'l may be of any usual-or we l -known constru'ction, but for the purposes pfexplanation of lustrated is of the character-more fully shown and described in the patent to Edward A..

As hereinbefore noted, the feeler,mecha-' I p nism may be of any of the usual types now s 1 employed at the filling replenishing side of the loom and as shown in the'presentinstance =1" it comprises a feeler stand 7 suitably mounted on a bracket 8 and having the feeler v9 ex tending rearwardlytherefrom to enter the usual feeler slot in the front wall of the shuttle on detecting beats to feel for the filling. Associated with the feeler 9 is a transmitter 10 connected to a rocking lever llhaving a projecting portion 12 to cooperate with the actuator 13 to effect replenishment of filling by the transferer when the feeler detects substantial exhaustion thereof, all as more fully shown and described in the Cunnifl patent hereinbefore mentioned,

The shuttle 14 is provided with the usual bobbin chamber .15 and has its front wall 16 provided with the feeler slot 17 preferably 1 10 Q K d i e.1r .-.::55! The magazine or hopper containing the filli formed centrally of the front side wall 16 of the shuttle.-

Below the feeler slot 17 in the present instance of'the invention, thefront wall 16 of the shuttleis provided with a longitudinally extending thread groove 18 which, as indi-' cated in Figs. 2 and 4, provides a recess below the feeler slot for the length of filling extending between the cloth selvage and the nal axis of the shuttle, as indicated by t e line shuttle,,when the latter is boxed at the replenishing side of the loom.

The shuttle 14 is provided with an automatically threading block 19 and the side delivery eye 20 oft-he shuttle is below the horizontal plane passed through the lon ltudilongitudinally extending. thread groove be- I low the feeler slot, and to this end the shuttle v is provided with a thread'guide at the exit portion of the side delivery eye for directing the thread downwardly into the longitudinally extending thread passage. "The thread guiding means'ma'y be variously contrived but as indicated inthe present instance of the --invention it consists of a pin 21 inclined with 'r'es ect to the longitudinal axis of theshuttle an extending from the top portion 22 of theside delivery eye in an inclined direction,

' v with its lower thread end guiding portion 23 substantially in the longitudinal'axis of the groove. Normally, the thread'or .filling a will take the position at the lower thread guiding end portion of'the inclined pin 21 at the'exit end of the side delivery eye, and during the weaving operation the thread may I draw more or less overother portions of, the guide or pin 21 and consequently not un'- duly wear the guide or pin, and when the shuttle comes to restin the filling replenishthread groove.,-

'ing box the tension on the thread and its natural tendency todrop will cause it to pass around the lower thread'guiding portion of theinclined guide-or pin substantially on the longitudinabaxis of the longitudinal In some cases it maybe desirable to have an additional guide v pin or post 24 at the I, opposite side of the exit portion of the side delivery eye, but the characteristics of the; invention are such that when the shuttle comes to rest in the filling'replenishing box,

, In accordance with the present invention,. the thread or filling c as it is delivered from the side delivery eye is to be directed into the of the thread the thread will be directed by the downwardly inclined guide or pin 21 to insure that it enters the longitudinally extending thread 1 guide, with the result that the thread or filling the feeler slot in the front wall of the shuttle and directing the thread or filling unerringly into the longitudinal thread guide by the inclined pin at the entrance of the side delivery eye, all; liability of breaking the filling or thread 0 between the cloth selvage and side delivery eye of the shuttle on a will be obviated.

As before stated, the side delivery e 'e if below the horizontal plane passes throng 1 the longitudinal axis of the shuttle and intersects the longitudinally extending thread guide 18, whilethe inclined pin or thread guide insures that the thread will be directed from the exit of the side delivery eye downwardly into and substantially at the center of the longitu'dinally extending thread guide.

What is claimed is 1. An automatically threading loom shuttle havinga feeler slot and a longitudinally extending thread groove below the feeler slot,

a side delivery eye having its exit opening below the horizontal plane passing through the longitudinal axis 0 the shuttle, and a thread guide at the exit of the side delivery-eye inclined downwardly from the top of the eye detecting beat in a direction to deflect-the thread from the exit of the side delivery eye into the thread I low the feeler slot and permit unobstructed entrance of the feeler at. the replenishing side of the-loom. r v

2. An automatically threading loom shuttle having a feeler slot and a longitudinally extending thread groove below the feeler slot,

a sidedelivery eye having its groove that the thread may be positioned beexit opening below the horizontal plane passingvthrough' the longitudinal exit of the-shuttle, and a i thread guide at the exit of the side delivery eye inclined downwardly from the top of the eye with its lower thread engagingportion substantially in, the longitudinal axis groove that the thread may be directed into the'thread groove below the feeler slot and permit unobstructed entrance 116 of the feeler at the replenishing side of the 

